Trying to decide between the Fi Mini and Fi Series 3+? We’ve outlined the key differences below to help you choose the right fit for your pet’s lifestyle.
You can also take our quiz to find the device that best fits your needs!
Whether you choose the Fi Mini or Series 3+, you’ll get 24/7 escape alerts and real-time tracking of your pet’s activity, sleep, and location.
Recommendations
While the best product for you depends on your pet’s needs and your preferences, here’s our recommended use cases for Fi Mini and Fi Series 3+:
Fi Mini: Ideal for puppies, small dogs, and cats. This product is ideal for anyone looking for a lightweight option that attaches to most collars and harnesses.
Fi Series 3+: Designed for all adventure dogs. The Series 3+ is high-performance and provides AI-driven insights on your dog's behaviour. Its durable, integrated design includes a collar band.
Want a full comparison of size, features, and more? Explore the chart below.
Comparison Chart
|
Series 3 + |
Fi Mini |
|---|---|---|
Sizing |
81.5mm x 30mm x 11.5mm |
42mm x 30mm x 12.5mm |
Weight |
47 grams |
16 grams |
Comes with a Fi Base |
Yes |
No |
Charging Method |
Fi Base charging |
USB-C Charging |
Night Light |
Yes |
No |
Waterproof |
IP68/66K |
IP68 |
Battery Life |
Up to 3 Months |
Up to 2 Months |
To see how Fi Mini and Series 3+ compare to earlier models, dive into our Fi Membership Features article for a full breakdown.